java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

GitHub | gauravjain131 | 1 month ago
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  1. 0

    Getting NPE in onMeasure().

    GitHub | 1 month ago | gauravjain131
    java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
  2. 0

    NPE when using include layout

    Stack Overflow | 8 months ago | leenolasco
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getVisibility()' on a null object reference
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  4. 0
    samebug tip
    You cannot update your adapter contents in the background. Prepare your data on the background thread and then pass it to the main thread to update the adapter and call notify.
  5. 0

    Recyclerview onMeasure java null pointer exception even though there is no recyclerview

    Stack Overflow | 2 years ago | Aditya Kiran
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.RecyclerView$LayoutManager.onMeasure(android.support.v7.widget.RecyclerView$Recycler, android.support.v7.widget.RecyclerView$State, int, int)' on a null object reference

  1. korman 1 times, last 9 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

    at android.widget.ArrayAdapter.getCount()
  2. Android Platform
    View.measure
    1. android.widget.ArrayAdapter.getCount(ArrayAdapter.java:330)
    2. android.widget.ListView.onMeasure(ListView.java:1151)
    3. android.view.View.measure(View.java:17438)
    4. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5464)
    5. android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
    6. android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
    7. android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
    8. android.view.View.measure(View.java:17438)
    8 frames
  3. in.til.popkorn
    SlidingUpPanelLayout.onMeasure
    1. in.til.popkorn.ui.widget.SlidingUpPanelLayout.onMeasure(SourceFile:802)
    1 frame
  4. Android Platform
    FrameLayout.onMeasure
    1. android.view.View.measure(View.java:17438)
    2. android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:728)
    3. android.widget.RelativeLayout.onMeasure(RelativeLayout.java:464)
    4. android.view.View.measure(View.java:17438)
    5. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5464)
    6. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    6 frames
  5. Android v7
    ContentFrameLayout.onMeasure
    1. android.support.v7.widget.ContentFrameLayout.onMeasure(SourceFile:135)
    1 frame
  6. Android Platform
    FrameLayout.onMeasure
    1. android.view.View.measure(View.java:17438)
    2. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5464)
    3. android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
    4. android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
    5. android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
    6. android.view.View.measure(View.java:17438)
    7. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5464)
    8. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    9. android.view.View.measure(View.java:17438)
    10. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5464)
    11. android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
    12. android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
    13. android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
    14. android.view.View.measure(View.java:17438)
    15. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5464)
    16. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    16 frames
  7. Android
    PhoneWindow$DecorView.onMeasure
    1. com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2560)
    1 frame
  8. Android Platform
    ActivityThread.main
    1. android.view.View.measure(View.java:17438)
    2. android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2001)
    3. android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1166)
    4. android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1372)
    5. android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054)
    6. android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5786)
    7. android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
    8. android.view.Choreographer.doCallbacks(Choreographer.java:580)
    9. android.view.Choreographer.doFrame(Choreographer.java:550)
    10. android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
    11. android.os.Handler.handleCallback(Handler.java:739)
    12. android.os.Handler.dispatchMessage(Handler.java:95)
    13. android.os.Looper.loop(Looper.java:135)
    14. android.app.ActivityThread.main(ActivityThread.java:5221)
    14 frames
  9. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Method.java)
    2. java.lang.reflect.Method.invoke(Method.java:372)
    2 frames
  10. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
    2 frames